Trolley-protector.



PATENTED MAYsl, 1904.

J'. H. BEST, JR. TROLLEY PROTECTOR.

APPLICATION FILED JAN. 8, T904.

A TTOHNE YS In wm N0 MODEL I' w/TA/Essfs,l

Patented may 31, 1904.

l y UNITED STATESV PATENT OFFICE.

JOHN H. BEST, JR., 4OF SANDUSKY, OHIO.

TROLLEY-PROTECTOR.

SPECIFICATION forming part of Iietters Patent 1`\To. 761,574, dated May31, 1904. Application filed January 8,1904. Serial 110.188,163. (Nomodel.)

To all whom it may concern:

'Be it known that I, J oHN H. BEST, Jr., residing in Sandusky, in thecounty of Erie and State of Ohio, have invented a new and ImprovedTrolley-Protector, of which the followhangers, and other` devices-likelyto engage with trolleyprotectors as they have been heretoforeconstructed, all as will hereinafter be fully described, and the novelfeaturesl pointed out in the claims. Reference is had lto theaccompanying drawings, in which* Figure 1 is a side elevationillustrating my invention in use. Fig. 2 is an elevated rear view; Fig.3, a detail broken-away sectional view taken on line 3 3 of Fig. 1,and-Fig. 4 s a detail sectional viewl taken on line 4 4 of ig. l. Y

In carrying out my invention I employ anyv suitable form of trolley-headA, having forks B, providing support for the usual sheave C on an axle,which may be in the nature of `a simple bolt D, having support at theupper end of the forks, as best shown in Fig. 3.

At opposite sides of the sheave O, I lixedly arrange plates E, havingsupport on the axle D by approved means, serving to prevent rotation,and washers F, arranged between the plates E and the sheave O, may alsobe used. At the upper end or top edge of the plates E, I provideyielding and abutting dogs G,hav

ing stemsV H, made projecting, adapted for connection to the'upper endsof levers I, having fulcrums at J on the plates E and secured bysuitable headed pins K. (See Fig. 4.) It

will be noticed that the abutting ends of the ldogs G are enlarged andmade rounding or curved, whereby upon contact with a fixed object on theconductor-wire they will be separated against tension of the springs Lon the dog-stems H. The springs are arranged in suitable recesses L inthe linner sides of the plates E, with their ends confined between theenlarged head on the dogs and the bottom or inner wall of the recesses.

The lower ends of the levers I are connected by two ends M of a rope N,which latter extends down through an eye O.

My invention will be understood from the above description. The rope Nis the common means employed for pulling down the trolley-pole. Nowobviously when the rope N is pulled, as stated, the lower ends of thelevers I will be drawn together through connection of the two ropes M,and therebyeffect suliicient separation of the dogs G against tension ofthe springs L to permit passage between them of the conductor-wire. Themain object of the dogs G is to prevent jumping of the trolley from theconductor-wire. Through their construction, however, they have addi-Ational advantage in being made yieldingly endwise separable to permitfree passage over obstructions on the conductor-wire.

Having thus described my invention, wha I claim as new, and desire tosecure by Letters Patent, is-

1; The combination in a trolley-protector, of rigid plates at oppositesides of the trolleysheave, leversl fulcrumed on the said plates,operating-ropes extending from the lower ends of the said levers, andyielding abutting dogs at the upper ends of the levers, the contactingfaces ofthe dogs being adapted to be laterally separated upon contactwith a p ro- V jection on the conductor-wire.

